Digital negatives
US7441182B2 · kind B2 · utility
110Cited by
4References
56Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2003 |
| Grant date | Oct 21, 2008 |
| Priority date | — |
| Expiry date | Jun 29, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/51
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for digital negatives are described. In one aspect, a digital negative is created on a computing device from a digital image. The digital image is linked to the digital negative. In response to a save operation associated with the digital image, a new digital image is generated and bi-directionally connected to the digital negative. In response to a revert operation associated with the new digital image, contents of the new digital image are replaced with contents of the digital negative.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.